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平面解析几何是高中数学的一个重要组成部分,它包括直线、圆锥曲线、极坐标与参数方程三部分内容,是高考的重点. 解析几何解答题每年一道题,它融几何、代数、三角知识于一体,内容丰富,知识跨度大,在近年高考中体现“知识与能力并重”的考查原则.从历年的高考试题来看,不难得知有以下几大热点:曲线轨迹问题的探求、直线与圆锥曲线位置关系问题、最值问题、范围问题等,如下表:
Plane analytical geometry is an important part of high school mathematics. It includes three parts: straight line, conic section, polar coordinate and parametric equation. It is the focus of the college entrance examination. An annual problem of analytical geometry solution problem, it integrates geometry, algebra, and trigonometry knowledge. One, rich in content, knowledge span, in recent years college entrance examination embodies the principle of “knowledge and ability equal importance.” From the high exam questions over the years, it is not difficult to know that there are several major hot spots: the search for the curvilinear trajectory problem, straight line and cone Curve location relationship problems, maximum value issues, scope issues, etc., are as follows: